TECHVENATION
Free IT Tools
67 practical tools for networks, websites, PageSpeed, cybersecurity, infrastructure, CCTV, storage and developers.
Core Techvenation Tools10 tools
What Is My IPPublic IPv4, IPv6, local/LAN IP and approximate IP location.Open tool →IP LookupIP, reverse DNS, ASN, RDAP and approximate IP location.Open tool →IP & Network ToolsDNS and safe public-host connectivity diagnostics.Open tool →Internet Speed TestPing, jitter, sustained download and upload speed.Open tool →Website Health CheckAvailability, SEO, speed and configuration checks.Open tool →Cyber Risk ScannerHeaders, TLS and email-security controls.Open tool →DNS & Email CheckerMX, SPF, DMARC, DKIM and DNS records.Open tool →SSL CheckerTLS certificate, hostname and expiry.Open tool →Uptime MonitorWebsite status and email alerts.Open tool →Hardware EOL CheckerSearch the local hardware lifecycle database.Open tool →
Website9 tools
PageSpeed Insights AnalyzerMobile and desktop Lighthouse performance, accessibility, best practices and SEO insights.Open tool →HTTP Header CheckerDisplay response headers returned by a public website.Open tool →Redirect CheckerFollow and display an HTTP redirect chain safely.Open tool →HTTP Status CheckerCheck the current HTTP status code for a public URL.Open tool →Website Response TimeMeasure server response time from your WordPress hosting server.Open tool →Website Technology DetectorIdentify common CMS, CDN and server technologies from public signals.Open tool →Robots.txt CheckerFind robots.txt and display indexing directives.Open tool →Sitemap CheckerCheck common XML sitemap locations and status.Open tool →SSL Expiry CalculatorCheck TLS certificate expiry and remaining days.Open tool →
Business2 tools
Security3 tools
Network15 tools
IP Subnet CalculatorCalculate network, mask, broadcast, usable range and host count.Open tool →CIDR CalculatorConvert CIDR prefix to subnet mask, wildcard mask and address capacity.Open tool →IP Range CalculatorCalculate the number of IPv4 addresses between two addresses.Open tool →IPv4 ↔ Binary ConverterConvert an IPv4 address to binary, integer and hexadecimal forms.Open tool →Subnet Cheat SheetQuick reference for /8 through /32 masks and host capacities.Open tool →Port CheckerCheck one common TCP service port on a public host.Open tool →Reverse DNS CheckerFind PTR/reverse-DNS hostname for a public IP.Open tool →Server Reachability / Ping ToolMeasure safe TCP reachability latency to HTTPS/HTTP on a public host.Open tool →MAC Address Vendor LookupIdentify the manufacturer/OUI for a MAC address using the free MACVendors lookup service.Open tool →MAC Address GeneratorGenerate locally administered unicast MAC addresses for labs and testing.Open tool →Bandwidth CalculatorConvert Mbps/Gbps to MB/s and estimate usable throughput.Open tool →VLAN / Network PlannerCreate a simple private-IP VLAN plan from device counts.Open tool →DHCP Pool CalculatorCalculate a DHCP allocation range within an IPv4 subnet.Open tool →Wi-Fi Channel GuideReference recommended non-overlapping Wi-Fi channels and planning notes.Open tool →Wi-Fi Coverage EstimatorEstimate access-point count from floor area, users and environment.Open tool →
DNS & Email6 tools
DNS Propagation CheckerCompare DNS answers from your server, Google Public DNS and Cloudflare 1.1.1.1.Open tool →DNS Record LookupInspect A, AAAA, MX, TXT, NS, CNAME and SOA records.Open tool →MX LookupCheck mail exchanger records and priorities.Open tool →SPF CheckerFind SPF records and flag common configuration problems.Open tool →DMARC CheckerInspect DMARC policy, reporting and enforcement level.Open tool →DKIM CheckerLook up a DKIM TXT record using a supplied selector.Open tool →
Domain4 tools
WHOIS / RDAP LookupLook up public registration data for a domain or IP using RDAP.Open tool →Domain Age CheckerShow registration date and approximate domain age from RDAP data.Open tool →Domain Expiry CheckerShow domain expiration date and days remaining when RDAP publishes it.Open tool →Domain Health CheckerCombine DNS, website, SSL, email-security and RDAP checks into one score.Open tool →
Developer9 tools
CSR DecoderDecode a PEM certificate signing request without storing it.Open tool →SSL Certificate DecoderDecode a PEM X.509 certificate without storing it.Open tool →Hash GeneratorGenerate MD5, SHA-1, SHA-256 and SHA-512 hashes from text.Open tool →Hash CheckerCompare text against a supplied MD5/SHA hash.Open tool →Base64 Encode / DecodeEncode or decode Base64 text.Open tool →URL Encode / DecodeEncode or decode URL components safely.Open tool →JSON Formatter / ValidatorValidate JSON and return the parsed structure and formatted JSON.Open tool →JWT DecoderDecode JWT header and payload without verifying the signature.Open tool →Timestamp ConverterConvert Unix timestamps and date strings to UTC and WordPress local time.Open tool →
Infrastructure9 tools
RAID CalculatorEstimate usable capacity and basic fault tolerance for common RAID levels.Open tool →NAS Storage CalculatorEstimate raw and usable NAS storage including a simple filesystem reserve.Open tool →UPS Runtime EstimatorRoughly estimate runtime from battery energy, efficiency and load.Open tool →PoE Budget CalculatorCalculate switch PoE budget from cameras, APs, phones and other devices.Open tool →CCTV Storage CalculatorEstimate recording storage from camera count, bitrate, hours and retention days.Open tool →CCTV Bandwidth CalculatorEstimate aggregate camera network bandwidth and headroom.Open tool →NVR HDD CalculatorEstimate required HDD count for a CCTV retention target.Open tool →Server Uptime CalculatorConvert availability percentage into allowed downtime.Open tool →SLA CalculatorCalculate maximum monthly and yearly downtime for an SLA target.Open tool →
